Quote from: Chris Bergin on 07/17/2017 10:39 amA write up of the issue, the other issue and there wasn't much more to write about so added some historical overview of TDRS from William:https://www.nasaspaceflight.com/2017/07/tdrs-m-under-review-pre-launch-incident/From the article:QuoteThe satellite carries s-band phased array antennae to allow simultaneous communications with five other spacecraft, as well as two steerable antennae providing S, Ku or Ka band coverage to spacecraft requiring communications at a higher data rate. It’s this system that is currently being reviewed due to the incident noted by NASA over the weekend.S-band omnis are typically for command and telemetry purposes (e.g. USB during post-launch, pre-deployment), not a high data rate application.
A write up of the issue, the other issue and there wasn't much more to write about so added some historical overview of TDRS from William:https://www.nasaspaceflight.com/2017/07/tdrs-m-under-review-pre-launch-incident/
The satellite carries s-band phased array antennae to allow simultaneous communications with five other spacecraft, as well as two steerable antennae providing S, Ku or Ka band coverage to spacecraft requiring communications at a higher data rate. It’s this system that is currently being reviewed due to the incident noted by NASA over the weekend.
July 13, 2017Atlas V First Stage is Lifted for TDRS-MA United Launch Alliance Atlas V first stage is lifted at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. The rocket is scheduled to launch the Tracking and Data Relay Satellite, TDRS-M. It will be the latest spacecraft destined for the agency's constellation of communications satellites that allows nearly continuous contact with orbiting spacecraft ranging from the International Space Station and Hubble Space Telescope to the array of scientific observatories. Liftoff atop the ULA Atlas V rocket is scheduled to take place from Cape Canaveral's Space Launch Complex 41 on Aug. 3, 2017 at 9:02 a.m. EDT.Photo credit: NASA/Kim Shiflett
Centaur Upper Stage in Place Atop Atlas VPosted on July 18, 2017 at 2:38 pm by Anna Heiney.At the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, United Launch Alliance team members mate a Centaur upper stage to an Atlas V booster. The rocket is scheduled to launch the Tracking and Data Relay Satellite, TDRS-M.At the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, United Launch Alliance team members mate a Centaur upper stage to an Atlas V booster. The rocket is scheduled to launch the Tracking and Data Relay Satellite, TDRS-M.The Centaur upper stage has been installed atop its United Launch Alliance Atlas V booster inside the Vertical Integration Facility at Cape Canaveral Air Force Station’s Space Launch Complex 41.The rocket is slated to launch the Tracking and Data Relay Satellite, TDRS-M. It will be the latest spacecraft destined for the agency’s constellation of communications satellites that allows nearly continuous contact with orbiting spacecraft ranging from the International Space Station and Hubble Space Telescope to the array of scientific observatories. Liftoff from Space Launch Complex 41 is scheduled for early August.Photo credits: NASA/Kim Shiflett
Sorry to hear about the issue with #TDRSM apparently damaged S-band TT&C antenna,critical for sat ops,AFAIK 1 of 2 shown here [first 3 photos]
Re ##TDRSM before you ask, yes there are 2 S-band antenna's, it was not mentioned which 1 was damaged,this is the other one,take your pick..[last 2 photos]
Jeff Foust @jeff_foust 14m14 minutes agoNASA, Boeing and ULA “are reviewing a new launch date in August” for TDRS-M, according to an agency statement.
TDRS-M Status Update – July 21, 2017Posted on July 21, 2017 at 5:12 pm by Amber Philman.NASA, Boeing and United Launch Alliance (ULA) are reviewing a new launch date in August for the agency’s Tracking and Data Relay Satellite (TDRS-M). NASA and Boeing need additional time to replace the spacecraft’s Omni S-band antenna at Astrotech Space Operations in Titusville, Florida. A separate possible ground support equipment issue at Astrotech still is being assessed. TDRS-M will launch on a ULA Atlas V rocket from Cape Canaveral Air Force Station in Florida. It is the latest satellite in a fleet of satellites supporting the space segment of the NASA’s Space Network.
Stephen Clark @StephenClark1 14m14 minutes agoNASA’s Greg Williams, in NASA Advisory Council committee hearing, says replacement of damaged TDRS-M omni antenna is to occur today.
NSF experts, please correct if I'm wrong:1. Currently, it takes approximately 3 days to reconfigure the launch range between Canaveral/KSC launches. Correct?2. Some, but not all United States launches use TDRSS during launch. Atlas V/Delta IV: yes; Falcon 9: no?***3. Launching TDRS-M from Canaveral on 8/10, followed by NROL-42 from Vandenberg, both on Atlas V's, is eminently do-able, yes?4. Launching NROL-42 on Atlas V, from Vandenberg on 8/14, followed by launching Dragon, on Falcon 9, from KSC later on the same day--also possible? No interference between the launch assets?5. Are there any personnel that will work 2, or all 3, of these launches?Thank you in advance!
Quote from: zubenelgenubi on 07/25/2017 09:11 pmNSF experts, please correct if I'm wrong:<snip>3. Launching TDRS-M from Canaveral on 8/10, followed by NROL-42 from Vandenberg, on 8/14, both on Atlas V's, is eminently do-able, yes?<snip>Thank you in advance!<snip>3. yes, but not going to happen<snip>
NSF experts, please correct if I'm wrong:<snip>3. Launching TDRS-M from Canaveral on 8/10, followed by NROL-42 from Vandenberg, on 8/14, both on Atlas V's, is eminently do-able, yes?<snip>Thank you in advance!
I don't have a further slip yet, but it was always the risk, especially if NASA thinks they've (AstroTech I assume) really messed this up they want even more work doing.
Quote from: Chris Bergin on 07/26/2017 07:56 pmI don't have a further slip yet, but it was always the risk, especially if NASA thinks they've (AstroTech I assume) really messed this up they want even more work doing.Astrotech has no involvement in the delays.